Dragon Ball X Chapter 1- A new hero, a new threat

Disclaimer- The following is a non-profit fan fiction. I don't own Dragon Ball, Dragon Ball Z, Dragon Ball GT, or Dragon Ball AF. The cover image was created and is owned by Maniaxoi on Deviant art.

Several years have past since Son Goku finished training Uub, the reincarnation of Majin Buu. Uub decided he needed to go back to his village to protect it. Even after all those years nobody ever stopped their training. During this time of peace, Goten met a girl named Valese and got married to her. He now has a son named Zero. Trunks married Mai (trust me. There were many hints to this in battle of gods. Watch the ending scenes and you'll understand). He now has a daughter named Page. Everyone was at peace, but then one day, those days of peace ended.
A saiyan pod flew toward Earth at full speed. "Wake up Koozan," a recording told the teenager inside. "You are now entering Earth's atmosphere."
The teenager known as Koozan yawned. "About time," he said. "The saiyans on this planet will certainly be able to help me stop that menace."

Later, back on Earth, at the annual family reunion, everyone from Goku's family had come together. Then, they realized that a new power was heading toward Earth.
"Gohan, Goten, Zero, Pan, do you feel that?" asked Goku.
"Yeah," Goten said. "Its not too far from here."
"I estimate it will be here in about five minutes." Gohan said.
"What is it?" asked Pan.
"I don't think it's evil," Zero said.
"Even so, it could be dangerous." Goku said. "Gohan, can you tell where its going to land?"
"Yeah, about 10 miles west of here."
"Then let's get going."

The ship landed exactly where and when Gohan said. It crashed into the ground at top speed. Goku and his family ran up to it to see what it was.
"Isn't that a saiyan pod!?"
"It looks like one, but there aren't any more of Frieza's soldiers or saiyans left, or is there?"
The door of the ship opened. Everyone watched as Koozan stepped out. The Z warriors gasped when they noticed his scouter, standard issue saiyan armor, and, most importantly, his tail.
"He... really is a saiyan!"
"I don't know why your so surprised. Anyway, are you Son Goku?" asked Koozan.
"How did you know that!?" asked Goku. "Why are you here!?"
"You"ll find that out soon. However, I need to test your might." He went into a fighting stance.
"This... could be trouble," said Gohan.
"I think you have the words trouble and fun mixed up." said Zero with grin. "I haven't had a good fight in a while, so this better be interesting."
"I agree," said Goku. "I'll fight him first."
"But Grandpa..."
"Zero, I understand you want to fight this guy, but I think it would be best to let your Grandfather go first." replied Goten.
"But dad, if he goes first there won't be anything left of that guy!"
"Will you just shut up and let them fight?" Pan asked angrily.
Goku got into a fighting stance as well. Koozan transformed into a super saiyan 2. "Your a super saiyan 2 as well?" Goku asked.
"Yes." replied Koozan. "And I also know that super saiyan 2 isn't your strongest form. I want you to turn into a super saiyan 3."
"I don't have any idea how you know that, but fine." he then transformed into the legendary super saiyan 3. "You ready?"

On the other side of the world, Vegeta, the prince of the saiyans, felt the increased power level of Goku. "Why has Kakarot transformed!?" he asked himself. "He only uses that form against the strongest of enemies. I must find out who he's fighting..."

Back on the other side of the Earth, Goku was busy fighting against this new opponent. He blocked every single one of the Koozan's punches without even trying. "I have to admit kid, you've got skill," Goku said. The teenager grinned.
About one minute later, Vegeta found them. Koozan saw Vegeta and gasped. He jumped away from Goku and said "Oh my god, its the prince of all saiyans!" He bowed down to him.
"Uh... I thought we were fighting..."
"How dare you not bow down to prince Vegeta!?"
"What!?" Goku asked confused. He turned to the others. All of them were just as confused as him, except for Zero, who was laughing hysterically. All Vegeta did was facepalm himself.
"I don't care about that anymore." Vegeta replied.
"Huh?" Koozan asked.
"But you are going to tell us who you are right now. Understand?"
"As you wish. My name is Koozan. I've come to this planet in search of assistance."
"How are you a saiyan?" Pan asked. "I thought almost all of them were killed during the destruction of their planet."
"Three other saiyans survived. They are my grandparents. I, unlike them, am only 75% saiyan."
"Only 75%? Whats the other 25%?"
"Human."
"What!?" asked Vegeta. "How!?"
"I'll be happy to explain later, but right now, I'm hungry. Do you know any good places to eat?"
Everyone did an anime fall except for Goku and Zero. "Yeah, he's defiantly a saiyan." said Goku.

Later at kame house, the Z warriors and Koozan had ordered 167 extra large meat lovers pizzas from Pizza Fortress. Pan watched kind of disturbed by the large amount of food that Goku, Vegeta, Gohan, Goten, Zero, and Koozan were able to eat.
"So..." Goku began to say with his mouth still stuffed with pizza. "Can you explain to us how you're part human now?"
Koozan swallowed the last of the food on his plate with a single bite. "Sure. As I said before, three other saiyans survived when they were sent away to escape the destruction of planet Vegeta. There were two males and one female. One of the males was sent to Earth. He married a human and they had a son. That son was my father. Somewhere else in the galaxy, the other saiyan male met the saiyan female. They got married and had a daughter. That daughter was my mother. A few years later, my father and mother met. They got married and me and my brother Vile were born soon after. So anyway, thats how I'm part saiyan and part human."
"Why did you come to Earth?" asked Vegeta.
Koozan sighed. "Its a tragic story. Me and my parents were living peacefully on a distant planet. One day however, a psychotic saiyan named Xicor came. Xicor was half saiyan and half god. He wanted to take over the world. Many people, such as my dad, tried to stop him, but they all ended up dying. Others, such as Vile, joined him and became his servants. Vile soon became Xicor's right hand man after he proved himself to be his best servant. Soon I learned that Xicor planned to destroy the planet. I also heard legends about a saiyan on planet Earth who had unlocked the legendary form of super saiyan god. That saiyan was you, Goku. I quickly rushed to Earth to get help from you. Its very likely my home planet is gone now."
"Your own brother betrayed you and your parents!?" asked Goku.
"Why are you so surprised Kakarot?" Vegeta said. "Its not as if you didn't have a sibling that tried to kill you."
"You just had to remind us of Raditz didn't you?"
"What's a Raditz?" asked Koozan. "It sounds disgusting."
"He wasn't a food, he was a really weak saiyan," Vegeta said. "And guess what? Even when Kakarot teamed up with someone who almost had the same power level as him, they still had a real hard time beating him!" Vegeta laughed
"And then a year later Vegeta and Nappa came and tried to destroy Earth!" said Zero, remembering the stories his grandfather told him when he was five years old.
Vegeta frowned when he remembered the days he was still evil. Everyone stayed silent, until Videl spoke up. "Well I assure you, you can stay on this world for as long as you like."
"Thats very kind of you." replied Koozan. "But, that's enough about me, tell me all about you guys."
"Let me tell you." Gohan said. "Now, you already know a lot about Goku and Vegeta, right?"
"Of course."
"Then I'll start by introducing me. I'm Gohan, Goku's first son. That guy over there is Goten. He's my brother."
"Hey." said Goten.
"That woman over there is my wife, Videl."
"Hello." said Videl.
"That old man is master Roshi."
"Hi." said Roshi.
"That other woman is my mother, Chi Chi."
"Hello." said Chi Chi.
"That woman with brown hair is Goten's wife, Valese."
"Hi." said Valese.
"The kid sitting next to Goku is Valese and Goten's son, Zero.
"Yo!" Zero said still shoveling as much pizza into his mouth as possible.
"The last person here I want to introduce you to is my daughter, Pan."
"Nice to meet you." Pan said.
"Nice to meet you too." said Koozan. "So, is there anybody else I should know about?"
"Well, there are the other Z warriors and..." Gohan stopped talking. There was a worried look in his eyes. Koozan looked at the other Z warriors. They all had the same look in their eyes. "Wha... what the heck is that!?"
"That power level... its enormous!" said Goku.
'What are they talking about?' thought Koozan. 'Theres no way to find power levels without a scouter... or is there?' Suddenly, his scouter began to make a beeping sound. "He has arrived." Koozan said to himself, worriedly.
"Who has arrived!? Tell us now!" screamed Vegeta.
"Xicor didn't want any survivors. He must have sent Vile after me."
"Vile?" asked Zero. "He's your brother right?"
"Yeah."
"I've never seen someone with this much power." said Goku. "And I've literally faced off against the god of destruction!"
"Uh... guys?" said Pan. "That power is heading straight for us..."
Within mere seconds, Vile was only a mile away from Kame house. A moment later he was right outside. Everyone quickly rushed outside to see him. The saiyan that Koozan said was his brother glared at all of them. When he saw Koozan, he smirked. "Long time no see little brother," said Vile. "Xicor has sent me to kill you. However, I'm gonna give you a day to train." Several times faster than the speed of light, he flew toward Koozan and stopped right in front of him. "In exactly 24 hours, meet me in South City. Be there, or else this world gets blown up, just like the first one."
"So I was right, you blew up our home planet..."
"Yeah, along with all of its inhabitants, such as the rest of our family." Vile smirked.
It took all of Koozan's strength not to punch him. "... I'll kill you for this Vile."
"You can try, but you'll only die tired. See ya tomorrow. Oh yeah. I forget to tell you something. Even if you come, after I kill you, I'm going to destroy this puny rock ball. Start training Koozan. Start training for the day you die." He then flew away laughing like all maniacs laugh.
"... Were gonna die."Roshi said.
"Don't jinx it!" everyone yelled at him.
Moments later, Trunks arrived at kame house. "Guys, I got here as soon as I could. What happened?"
"I'll summarize it all in two words." Zero began. "Were screwed."
"Who's that?" Koozan asked.
"Thats Trunks, Vegeta's son." said Gohan.
"Oh. Hello prince Trunks! I'm Koozan. I'm part saiyan too!"
"He's a saiyan!? How is he a saiyan and I still want an explanation for what I asked before!"
"Fine. I'll explain it to you..."

Authors Note: Lets get one thing straight. Dragon Ball GT was not cannon. However, some of the characters that only appeared there will make appearances in this story, but changes may be made to some of the character designs. For example, Unlike in GT where Valese was too innocent, she will be made a lot smarter. Also, I can't give myself all the credit for this. A lot of the characters and story line was thought up by my friend, Chris. Lastly, I know what a lot of you are thinking. You're thinking 'Why doesn't Goten marry Bra?' and 'Why doesn't Pan marry Trunks?' Well, the answer to that is we believe that there is too much of an age difference... Not to mention Vegeta would murder Goten and Pan. Thanks for reading! Remember to comment on what you thought about my story!